US PATENT SUBCLASS 493 / 171
.~.~.~.~ Expandable or contractable plunger or reaction member


Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

51  DF  CONTAINER MAKING {2}
52  DF  .~ Rigid container (e.g., box, carton, cap, cup, etc.) {10}
162  DF  .~.~ Folding {7}
167  DF  .~.~.~ By plunger {6}
171.~.~.~.~ Expandable or contractable plunger or reaction member


DEFINITION

Classification: 493/171

Expandable or contractible plunger or reaction member:

(under subclass 167) Method or apparatus (a) wherein the male forming member is adapted to be modified to change the size or shape thereof; or, (b) including a backing element against which the male forming member is adapted to force the workpiece for bending, which backing element is adapted to be modified to change the size or shape thereof.